假如你是八年级学生李月，你的美国笔友Bill因为生病没能在暑假期间出去旅游，但是他对你的同班同学在暑假的活动情况感兴趣。请你根据以下信息，给Bill回封电子邮件，并希望他能多花时间锻炼身体。
写作要点：
1.对他暑假期间因病没能出去旅游表示遗憾。
2.介绍班级同学的暑假活动情况：
（1）百分之二十五的同学参加夏令营活动：
（2）百分之四十的同学遇到了有趣的人；
（3）你参加了英语歌唱比赛，还获得了一等奖，暑假生活丰富多彩。
3.谈谈作为中学生如何保持健康。
写作要求：
1.不得使用真实的姓名和学校名。
2.可适当加入细节，使内容充实，行文连贯。
3.字迹工整、语言精练、表达准确、调理清晰。
4.至少80词。

Dear Bill，
    How are you doing？______________
    Best wishes!
Yours，
Li Yue

【考点】旅游景点；书信类．

【答案】Dear Bill，
    How are you doing？I'm sorry that you couldn't travel during the summer vacation because of illness.Twenty five percent of the students in my class took part in the summer camp.Forty percent of the students met interesting people.I took part in the English singing competition and won the first prize.My summer life was rich and colorful.
    It is known to all that nowadays more and more people are concerned about their health.So it is of great importance for us to know how to keep healthy.First of all，it's necessary to keep a balanced diet.We should eat less junk food and eat more vegetables and fruits which contain lots of vitamins.Moreover keeping a good state of mood is also good for our health.We should always have an active attitude towards life.Last but not least，make sure we take regular exercise every day.Running or walking，simple as it is，has a positive effect on our health.
    Best wishes!

Yours，
Li Yue